python train.py --dataset cityscapes \
--root data/cityscapes \
--datalist data/list/cityscapes/val.txt \
--scales 256-128,512-256,1024-512,2048-1024 \
--crop_size 256 128 \
--input_size 256 128 \
--num_workers 8 \
--model hrnet18+ocr \
--pretrained checkpoints/cityscapes_hrnet.pth \
--num_classes 19 \
--batch_size 8 \
--task_name cityscapes_refinement \
--lr 0.001